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WO1998010198A1 - Boulon a verrouillage et procede de verrouillage de boulon - Google Patents

Boulon a verrouillage et procede de verrouillage de boulon Download PDF

Info

Publication number
WO1998010198A1
WO1998010198A1 PCT/JP1997/003039 JP9703039W WO9810198A1 WO 1998010198 A1 WO1998010198 A1 WO 1998010198A1 JP 9703039 W JP9703039 W JP 9703039W WO 9810198 A1 WO9810198 A1 WO 9810198A1
Authority
WO
WIPO (PCT)
Prior art keywords
bolt
tightened
head
pressure
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP1997/003039
Other languages
English (en)
Japanese (ja)
Inventor
Yoshiji Tutikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU40326/97A priority Critical patent/AU4032697A/en
Priority to KR1020007002159A priority patent/KR20010023513A/ko
Priority to US09/486,381 priority patent/US6592312B1/en
Publication of WO1998010198A1 publication Critical patent/WO1998010198A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
    • F16B39/2825—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts causing the bolt to tilt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/924—Coupled nut and bolt
    • Y10S411/929—Thread lock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/924—Coupled nut and bolt
    • Y10S411/929—Thread lock
    • Y10S411/936—Canted nut

Definitions

  • the present invention relates to a bolt having a locking function and a locking method for the bolt.
  • the present invention has been invented in order to solve such a conventional problem, and it is possible to exert a reliable locking effect only by adding a device to the bolt seat surface without using any additional member. It is a primary object of the present invention to provide a locking bolt and a bolt locking method. Disclosure of the invention
  • the present invention takes the following technical measures. That is, in the locking bolt according to the present invention, a bolt A having a large-diameter head 2 at the upper end of the screw shaft portion 1, wherein the seating surface 3 of the head 2 is inclined in one direction. Formed on a gentle slope.
  • the inclination angle of the bolt head 2 is increased.
  • the seating surface 3 is set within an angle range in which the surface pressure on the member C to be tightened and the pressure in the bolt axis cutting direction can be simultaneously generated when the seat surface 3 is pressed against the upper surface of the member C to be tightened.
  • a bolt A having a large-diameter head 2 at the upper end of the screw shaft portion 1 and a seat surface 3 of the head 2 formed on a gentle slope inclined in one direction is formed.
  • the inclined seat surface 3 of the bolt head 2 is pressed against the upper surface of the member C to be tightened. It also features a bolt loosening prevention method that simultaneously generates a surface pressure on the tightened member C and a pressure in the direction of cutting the bolt shaft to prevent the bolt from loosening.
  • FIG. 1 is a partially sectional front view showing an embodiment of a locking bolt according to the present invention.
  • FIG. 2 is a sectional view showing the process of using the bolt.
  • FIG. 3 is an enlarged sectional view showing a use state of the bolt.
  • FIG. 4 is a sectional view showing another embodiment of the bolt according to the present invention. Detailed description of the invention
  • reference symbol A is a metal bolt having a large head 2 at the upper end of the screw shaft portion 1, and the bottom surface of the head 2, that is, the seat surface 3 gently moves in the negative direction. It is formed with an inclined surface.
  • the angle of the inclined seat surface 3 of the bolt head 2 becomes equal to the member C to be tightened.
  • the pressure is set within an angle range in which the pressure in the direction of cutting the bolt shaft and the surface pressure on the tightened member C can be simultaneously generated by being pressed against the upper surface of the member.
  • the tilt angle that is, the seat angle depends on the bolt size, but is preferably about 1.0 to 3.0 degrees.
  • the above-mentioned predetermined tightening torque is equivalent to the standard tightening torque of the metal head bolt or a torque applied by about 10% to the standard tightening torque.
  • a headed bolt Is from 50 to 60 O kgf.cm and from M12 is from 400 to 50 O kgf.cm.
  • the bolt A constructed as described above is screwed into the screw hole B as shown in Fig. 2, and the tightened member C is tightened to bring the inclined seat surface 3 into contact with the upper surface of the tightened member C.
  • A is strongly tightened with a predetermined torque, as shown in FIG.
  • the head 2 of Porto A is fixed in a form in which the head 2 is forced into an inclined posture along the inclined seat surface 3.
  • the upper screw and the lower screw of the bolt shaft press against the screw hole B in the opposite direction to press the bolt shaft in the cutting direction, and at the same time, the inclined seat surface 3 comes into pressure contact with the upper surface of the tightened member C by surface contact. Due to this internal stress, the gap between the screw A of the bolt A and the threaded hole B is tightly filled, and the two are firmly locked to prevent the bolt A from becoming loose.
  • the inventor made a M12 metal bolt with a shaft length of 55 and a seat inclination of 2.3 degrees, and requested a third-party test center to perform a nut loosening vibration test. All four standard bolts loosened within 40 seconds, while all four test samples could withstand vibrations of 5 minutes or more.
  • the embodiments of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments.
  • the inclined surface of the seat surface 3 may be formed in a continuous step shape or a continuous waveform.
  • an inclined surface may be formed on the bearing surface 3 'of the port A' having the flange 4 at the lower portion of the bolt head.
  • the present invention can be implemented by appropriately modifying it within the scope of providing the constituent elements, achieving the object of the present invention, and achieving the following effects.
  • the bolt seat is provided with a very simple structure in which a gently inclined surface is provided in one direction on the head seat surface. It can be formed at the same time as molding, and can be provided at a price that is almost the same as conventional bolts. At the time of tightening, the internal stress generated by the inclined surface of the bolt seat surface causes the pressure in the bolt shaft cutting direction to be reduced.
  • the gap between the screws is absorbed to firmly lock the engagement between the bolt and the screw hole, thereby effectively achieving the loosening of the bolt.
  • the work efficiency is good because the screw can be lightly screwed in the initial stage of screwing in the screw hole as in the case of the standard bolt.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Connection Of Plates (AREA)

Abstract

L'invention se rapporte à un boulon à verrouillage, qui comprend un boulon (A) ayant une tête (2) à large diamètre, laquelle est placée sur l'extrémité supérieure d'une tige (1) à vis, et dont une face (3) constituant un logement est formée pour être doucement inclinée dans un sens. Le desserrement du boulon est empêché par taraudage dudit boulon (A) dans un trou (B) taraudé de façon à le serrer contre un élément (C), qui est lui-même serré avec une force de torsion prédéterminée de manière à comprimer la face (3) logement de la tête (2) du boulon contre la surface supérieure de l'élément (C) en train d'être serré. Cette opération génère ainsi simultanément une pression de surface sur l'élément (C) que l'on serre et une pression dans un sens de cisaillement de la tige du boulon. L'invention se rapporte également à un procédé de verrouillage de boulon.
PCT/JP1997/003039 1996-09-03 1997-08-29 Boulon a verrouillage et procede de verrouillage de boulon Ceased WO1998010198A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU40326/97A AU4032697A (en) 1996-09-03 1997-08-29 Locking bolt and bolt locking method
KR1020007002159A KR20010023513A (ko) 1996-09-03 1997-08-29 풀림 방지용 볼트 및 볼트의 풀림 방지 방법
US09/486,381 US6592312B1 (en) 1996-09-03 1997-08-29 Bolt employing shearing stress for self-locking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25370796 1996-09-03

Publications (1)

Publication Number Publication Date
WO1998010198A1 true WO1998010198A1 (fr) 1998-03-12

Family

ID=17255038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1997/003039 Ceased WO1998010198A1 (fr) 1996-09-03 1997-08-29 Boulon a verrouillage et procede de verrouillage de boulon

Country Status (5)

Country Link
US (1) US6592312B1 (fr)
JP (1) JPH10131937A (fr)
KR (1) KR20010023513A (fr)
AU (1) AU4032697A (fr)
WO (1) WO1998010198A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518638A (zh) * 2011-11-17 2012-06-27 中铁十五局集团有限公司 一种自动锁紧放松的自锁螺栓

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014055637A (ja) * 2012-09-13 2014-03-27 Sanco Industry Kk ゆるみ止め座金
JP2016217596A (ja) * 2015-05-19 2016-12-22 株式会社ノーリツ ねじ、配管カバーおよび給湯器セット
KR20160139295A (ko) 2015-05-27 2016-12-07 삼성전자주식회사 방사선 이미징 장치
CN107477057B (zh) * 2017-09-21 2023-08-22 中国三冶集团有限公司 一种建筑保温膨胀钉
CN107775324B (zh) * 2017-10-26 2021-06-11 蔚来(安徽)控股有限公司 螺栓加锁方法、螺栓解锁方法、螺栓加解锁方法及车用电池更换方法
CN109099045A (zh) * 2018-10-30 2018-12-28 浙江斯泰新材料科技股份有限公司 防松锁固型螺钉
JP7488205B2 (ja) * 2021-02-04 2024-05-21 三協立山株式会社 構造体

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5088754U (fr) * 1973-12-19 1975-07-28
JPH026813U (fr) * 1988-06-28 1990-01-17

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE15925E (en) * 1920-11-09 1924-10-07 Locking bolt and nttt
US3438417A (en) * 1967-01-20 1969-04-15 Eaton Yale & Towne Canting lock bolt
JPS5088754A (fr) 1973-12-14 1975-07-16
JPH026813A (ja) 1988-06-24 1990-01-11 Kondo Kogyo Kk フィルター取付装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5088754U (fr) * 1973-12-19 1975-07-28
JPH026813U (fr) * 1988-06-28 1990-01-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518638A (zh) * 2011-11-17 2012-06-27 中铁十五局集团有限公司 一种自动锁紧放松的自锁螺栓
CN102518638B (zh) * 2011-11-17 2014-01-15 中铁十五局集团有限公司 一种自动锁紧放松的自锁螺栓

Also Published As

Publication number Publication date
US6592312B1 (en) 2003-07-15
JPH10131937A (ja) 1998-05-22
AU4032697A (en) 1998-03-26
KR20010023513A (ko) 2001-03-26

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